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what is ozone layer ? |
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Answer» Ozone is an allotrope of Oxygen which consists of oxygen atoms in non linear fashion.It plays important roles such as acting as a giant sun screen protecting the earth from harmful UV radiations.Ozone isvery rarein our atmosphere, averaging aboutthree molecules of ozone for every 10 million air molecules.Ozone is mainly found in two regions of the Earth's atmosphere.Most ozone (about 90%)resides in a layer that begins between 10 and 17 kilometers above the Earth's surface and extends up to about 50 kilometers.This region of the atmosphere is called thestratosphere. The ozone in this region is commonly known as the ozone layer.Theozone layerrefers to a region of Earth's stratosphere that absorbs most of the incoming solar radiation. It contains high concentrations ofozone(O3) relative to other parts of the atmosphere, although still very small relative to other gases in the stratosphere. |
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